High temperature resistant glass The upper and lower pots of the siphon pot are made of high-temperature resistant borosilicate glass, which can withstand a temperature difference of of -30℃-180℃, high temperature resistance and crack resistance. Anti-scalding handle The handle is made of anti-scalding material, which is comfortable to grip, delicate and antiskid, and the distance between the handle and the lower pot is sufficient, so there is no need to worry about touching your fingers. Food grade sealing ring Heat evenly during coffee brewing, no rubber peculiar smell, good sealing effect. The siphon effect is more pronounced and the brewed coffee tastes better. Buffer clamp Buffer the pressure of the connecting clamp, protect the lower pot from being clamped, prevent slippage and fall, and the tightness of the connecting clamp can be adjusted, which can enhance stability and make it safer to use. Compatible base Large-angle stainless steel base, good stability, durable, and compatible with a variety of heating equipment, such as: alcohol lamp, halogen beam heater burner, gas stove, etc. One cover for multiple uses The cover can be used for dustproof and sealing of the upper pot, and can also be used as a support for placing the upper pot for convenient storage, and at the same time can collect the water in the upper pot. How to make a cup of siphon coffee: 1. Add water and install filter element: It is best to add hot water to save boiling time;2. Start heating, insert the upper pot diagonally, and wait for the water to boil until there are big bubbles;3. Right up and insert into the upper pot;4.Let the water in the lower pot rise completely to the upper pot;5.Pour the coffee powder-stir (turn left and right);6.The first stirring, wait for 30s, the second stirring for 5s, stop heating;7. Done To make a perfect cup of siphon coffee, you need to pay attention to the following: 1. Water quality selection: pure water, purified water, magnetized water, do not use mineral water, tap water, distilled water, ionized water,soft water.2. Temperature: 80～90℃ (176℉～194℉)3. Time: all 50-60 seconds (do not exceed the time too long), special coffee can be brewed for 1 minute.4. The coffee beans should be fresh and not damp.5. The best coffee beans are freshly ground and boiled, the most fragrant and delicious.6. Pay attention to the size of the fire source: small fire is best.